Pipe-wrench.



W. L. BESSOLO.

PIPE WRENCH.

APPLICATION FILED 00129, 1910,

Patented Oct. 3. 1911.

3 SHEETS SHBET l K. T i 9.

I W. L. BESSOLO.

PIPE WRENGH.

APPLICATION FILED O(;T.29.1910.

ssnnn'rs sum v Patented Oct. 3

llll

W. L. BESSOLO.

PIPE WRENCH.

APPLICATION FILED OCT. 29, 1910 1,094,792 Patented Oct. 3. 1911.

L! SHBBTS' SHEET '3.

STAfllti PATENT WILLIAM LOUIS BESSOLO, OF DENVER, COLORADO ooaxzoa'.

To all whom it may concern:

Be it known that l, VILIQIAH Louis BES- sono, a citizen of the llnited States. residing in the city and county of Denver and State of llolorado. have invented certain new and useful improvements in' .l ipe-lvrenchesg and l dodeelare the 'tiollo wing to he a full, clear. and exact dos .ript ion ol' the invention, such. as will enable others skilled inthe art to which it appertains to maize and use the same. reference being had to the accompanying d rawings, and to the characters of reference marked thereon, which form a part of this specification.

lily invention relates to fimprovementain pipe wrenches, my object. being to provide a device of this character which shall he simple in construction, economical in cost,

flexible reliable, durable and ellicient in use, and to this end the invention consists, generally speaking, of a handle or shank member upon which is mounted a jaw member in such a man er that it has a limited degree of rocking movement. l i it-h this rocking .jaw member is nirotally connected a jointed or cooperating member extoriorlv toothed to interlock with a sprinq-actuated pawl also pivotallymounted on the shank. or hazulle member adjacent the rocking jaw member. l'l hcn the rocking jaw member is mover. in one diroctimi-the cooperating jaws are made to tightly grip the pipe interposed between them. through the instruincntality ol' the upringaictuatfll pawl.- while when the rocking memher is moved in the opposite direction the space between the jaw is enlarged eiu'iicicntly to allow the wrench to be turncd on the pipe in the reverse (llllftillm'l from the operating movement ill order to get a new hold. '3 \l v improved wrench may he used as a vise when uu'uinted ilhtt euitahle support. for the purpose of holding a part in place for any purpose.

llaving hrictlv outlined my in'iproved construction, l will proceed to doseriho the same in detail, reference being made to the accompanyilu: drawing in which is illustralcd an omluuliincnt thertmt.

In this drawing: Figure l is a view of my iuiprovcd wrench showing the flexible jaw opon and the pipe laid upon thc rocking; jaw ready to he ongap wl lw lhc loxihlr jaw whcn thrown into coopcrativo relati n with tho rocking jaw. l ig. 2 is a similar \icw atrating holh jaws in coope Specification of Letters Patent.

' flap ilication filed October 29. 1910.

i and FIFE-WRENCH.

Patented Dot. 3,1911. sei-iai'ivo. 589,676.

tion with the pipe. In this View two p0sitions of the wrench are illustrated, one being the pipe-gripping position in full lines .the other'thc pipe-releasing position, which is indicated by dotted lines. Fig. 3 is an'edgo view of the wrench or a View looking. at right angles to Fig. :2. viewed in the direction ot" arrow 3, Fig. 2. Fig. i is a .view similar to Fig. 52, but on a smaller scale. and showing the wrench used as a vise, the same being mounted in a holder se(:ur0d to a stationary member. Fi 5 is a. side elevation of the wrench partly in section. the parts lacing shown in the pipegripping position, the shank adjacent the rocking jaw heing' shown partly in section. Fig. (3 is a side elevation of the wrench illus' lrating a modified form of construction, the scale being approximately the same as in Figs. 4 and :3. Fig. 7 a detail view of the spring-retained pawl. view of the same. edge and side viewsreepectivcly of the links forminga part oi the flexible jaw of Fig. 8 is an edge thetorm of crmetruclion shown in Fig. 6..

ll will he noted that Fig. l) is a view looking in the direction of arrow 9 Fig. 10. Figs. 11 and ii are side and edge views tivclv ot' the links- Forming a. part ot the flexible jaw in the form of construction shown in Figs. 1. to 5 inclusive.

The same rct'ercncc characters indicate the same parts in all the views.

Referring first more especially to the con- Figs. 9 and 10 illustrate respecslruction illustrated in l iga. l to (3 inchmivc,

and Figs. 11 and 12. let the nluucral 5 designate the shank of the wrench. which hae a curved semicircular socket (3 at its upper cud. and a hiturcatod extension 7 projecting upwardlv from thc said socket. the same lu-ing-composcd of two members 8 hctwccn which a pawl 9 is pii olcd, the pawl .hcing sccul'cd in place by a rivet 1Q. This pawl is' cnn'agcd by a leaf spring 112 whose lower cxtrcmitv is secured to the upper partol" the shank as shown at 13. W paw-d through hctwccn thc arms 8 of the hi'lurcatcd member 7 and caused to engage the pawl f) on its lower edge. In this speci licalion the tern'is upper and lowcr must he understood as applied to the wrencn when it. occupies a vertical or what may he lcrmcd theupright poFit-ion. which it aesumed to occupy 1n the varuuis VlOWH the drawing.

ivc rclag The socket (l of the shank or handle of This s )rin is i illustrated by the dotted position of the (remit-x v traddlin g' a tongue .17 which prot handle in Fig. 2, since the spring 12 actingo jects upwardly from the bottom of the j 011 the pawl 9 has a tendency tomove the sccket H. In fact thejaw 1:") as illustrated I entire jaw structure as far .as possible in in the drawing is composed of two distinct I the direction of the arrow A in Fig. 2. This par 11 members 18, which are perhaps best is particularly the case if we assume that ilhrlralcd in Fig. 3. These members arei the device is employed as a vise as illus- 7.5 provided with shoulders 19 which ngage trated in Fig. 4, since in this eventthe: similar shoulders 20 formed on the shanki handle member must remain stationary,

.7. The members 18 of the jaw lie llbt-llO- i WllllG the jaw structure is actuated by the same planes with the members 8 of the ev-, sjniing-pressed dog 9 to cause the jaw mem- 15 tension 7 and the jaw 15 has a limited deber 15t0 move as far as possible toward the so grce oi rocking movement, the shoulder. right or in the direction of arrow A. Nhen- Forming a stop in one direction, and the g in this position the pipe is released by the members R of the extension 7 forming a step t jaws. Now when it is desired for the jaws in the oppcsite direction. 1 to grip the pipe to prevent the latter from 20 The pawl 9 passes bet ween. the members turning, the jaw structure is moved inthe g5 .18 ot' the jaw 15 and its curved pointed 2 direction opposite the arrow A in Figs. 2 extremity 21 is adapted to engage teeth 22 l and 4, causing the parts to assume the full tormcd on the outer edge of a curvedjaw line-position in the said views. The pipe I member 23 whose inner edge is toothed as is'then tightly gripped and cannot be turned 25 shown at 24- to grip the pipe 25. This! within the jaw structure. As soon as the 90 toothed member is connected with. the force is released which holds the said strucjaw member 15 by means of two links 26 t ture in the full line position, the springand 27 respectively. the link 2(3.consisting i actuated pawl 9 will. return thesaid strucot a single member having one extremity fture to its limit of movement in the direcconnected with the jaw 15 by a rivet 28 tioii oi -arrow A in the said figures. In 95 which is passed through the link QGand 1 other words, it we a sum ha he vis f rm also both members 18 of the jaw 15, the last I of the device is employed, we must assume named members. however, being reinforced that the jaw 15 with its attachments rocks as shown at 29 to give increased strength i bacr and forth from its limit of movement 5 to the jaw at this point. The link 27 con- 3 toward the right where it is stopped by the 100 sists of two members 30 which are pivotall members 8 of the handle extension 7, and. connccted with the link 26 by a rivet pin 1 toward the left by the shoulders 20 formed 31. while their opposite extremities are i on the handle as. heretofore explained. pivotally connected as shown at. 232 with the 1 However, it it is used simply as a wrench 40 curved jaw 23. These jaw links 26 and 27 j acting upon a pipe which is stationary, same 105 give. flexibility to the jaw structure which f lnaing'held' so in the vise structure or supcoi'iperates with the rocking jaw 15. The ported irrany other suitable manner, the said links are toothed on their inner edges j handle 5 will be moved back and forth from as shown at 3.; and 4-H, to harmonize with i the dotted line or released position in Fig.

the. teeth 24 ot the jaw member 23. The i 2 to the full line or grij'iping position inthe .110 upper faces of the members 18 of the jaw E same figure. In any event the result is the 15 are also toothed as shown at 35, the said l same. It will. be observed that when the toothed t'aces being upwardly inclined t'rom handle member is moved from thefull line the pivot pin 28 and arranged to cooperate position to the dotted line position in Fig.

with the toothed taces ot'the links 26 and 2 that the jaw structure is slightly expanded 115 27 and the jaw member 23, when the parts 3 in a direction to release the pipe, the deare in the position illustrated in Figs. 2 to gree ot' expansion being the distance be 5 inclusive. tween the full line position otthe toothed When the device is in use and it is desired edge of the jaw part 23 and the dotted line to cause it to grip the pipe 25 for instance, position of the some teeth in Fig. 2; while the latter may be placed first in the position when the handle is moved in the opposite shown in Fig. 1 when the flexible jaw strucdirection orto the full line position, the ture is open. This last named structure p'awl 9 is acted upon in such a',way-as to may then be thrown upwardly to engage tighten the jaw structure upon the pipe by ment with the pipe, in which event the rock moving the said structure from the dotted 1.55,

ing extremity of the pawl 9 is pushed downline to the full line position in said figure. wardly and caused to engage the exterior in the term of construction illustrated in teeth 22 ot' the jaw member 23 (see Fig. Fig.- 6, the handle 5 of the jaw 15 is substan It may be assumed that the normal positiaLly the same as illustrated in the other views. However, the jaw st ucture (10- 1st} the wrench is engaged by the lower semicircular extremity 14 ot, a jaw 15 which is I ccuuecual with the shank b a rivet pin ltl. This jaw is also bi't'urcated, its lower extion of the jaw member 15, or rather of the handle member 53, with relation to the jaw member when the aw structure IS applied to a pipe as in Figs. 2 to 5 inclusive, that is of a shown at 39 to engage the pawl 40', which is i provided with a rigid pin it adapted to the extension 7 of the handle ineinber. Two sets of notches are illustrated whereby the pawl l0 may be adjusted. The extremity of the jaw adjacent the pin ll is acted upon.

by a, leaf spring 43 which is secured to the handle by means of a screw lat. This spring serves to retain the pawl in place and also serves to maintain the pawl in operative relation with the teeth 35) of the chain. This form of construction operates in substanmembers, the flexible tially the same way as that heretofore described when referring to the other forms. It may be stated. however, that by making the flexible jaw structure of a chain or a series of relatively short pivotally connected jaw structure is caused to lit the pipe with greater accuracy.

In other words, by virtue of this construc- 1 tion practically the entire. inner surface area of the flexible jaw member may be caused to engage the pipe to which the \vrench is applied. The links of the chain 36 are toothed. on their inner surfaces as shown at &5, the teeth being positioned to grip the pi e when the wrench is Operated in a cer-- tain direction.

In the construction illustrated in Fig. l ni -which my improved device is employed as a vise, a holder it is used to support the wrench. This holder may, of course. be of any suitable construction. As lllll ll'illttl in the'drawing it consists of two clamping members 147 and 48 which are hinged at 49 and engage a stationary part 50, which may form a part of a, bench, table or other suitablesupport sullicicntly stable for the pm pose. The jaw mcmbers li and 4S arc clamped to the part 50 by means ot a bolt :"il which passes through openings formed in both jaws, a wing nut 52 being applied to the threaded extremity of the. jaw lor tightening purposes. v

llaving thus described my invention, what I claim is:

. 1. The combination ,of a handle, a jaw mounted to have a limited dcgrce of rocking movement thereon. and the handle hav in g a bifurcated extension beyond the pivot oi the jaw. a pawl pivotally connected with -the handle extension and located bchveeu the arms of its bilurcatcd portion. the pawl being spring-actuated and the rocking jaw being also bifurcated to allow the pawl to pass between its members. and a second jaw pivrblally connected with the lirslnamed jaw and exteriorlv toothed to receive the pawl, substantially as described.

in a pipe wrench the combination of a handle having a semicircular socket at its forward extremity. a tongue centrally mounted in the socket, a jaw bifurcated to straddle the tongue and having its rear extremityin engagement with the socket and constructed to have a limited degree of enter recesses 4-2 i'OI'lllQClJll the. parts 8 ot ated. and a tlexible jaw pivotally connected with the tirst named jaw and cxteriorly toothed to interlock with the pawl. the tlexible jaw beingadaptcd to pass through between the parts of the bifurcated jaw. substantially as i'lescribcd.

3. In a pipe wrench. the combination of a handle. a jaw connected with thcdiandlc to ha \'0 a limited degree of rocking movement, a bil'urcatcd extension located above the handle beyond. the pivot oi the jaw a second jaw pivotally connected with the lirst named jaw. and a pawl pivotallv mounted on the handle: extension and adapted to interlock with the sccond jaw which is fashioned for the purpose.

l. in a. pipe wrench. the combination of a.

handle and an extension located above the handle and extending at angles thereto, a jaw connected with the handle below the c);- trcmity ot the extension and arranged to have a limited degree of rocking movement, a second jaw pivotally connected with the first named jaw. and a pawl pivotally mounted ,on the handle extrusion and adapted to interlock with the second jaw.

5. The combination of a handle member. and an cktcnsion located at one extremity of the handle member and extending at an angle theret a jaw pivolallv connected with the handle member.below the extremitlv ot' the exten ion and arranged to have a limited degree ol rocking nuivenicnl; a curved jaw pivotallv connected with the first named jaw and arranged to cooperate therewith. and aspring actuated pawl pivgh t 1c1'cm.':i jaw pivotally connected.

with the handle member below the extremity ot the extension and arranged to have a limited degree ot rocking movement. the

extension being adapted to limit the movement ol the jaw in one direction. a springactuated pawl connected with the said handle extension. and a second jaw liivotaily connected with the first named jaw and cooperating lhcrcwitln the second jaw being lSO fashioned to interlock with the pawl, for the purpose set forth.

7. In a pipe wrench, the combination with handle, and an extension located at one 6' extremity of the handle, of a jaw connected 'With the handle below the extremity of the extension and arranged to have a limited degree of pecking movement, the extension being adapted to limit the movement of the i 10 jaw in one direction, a second jaw pivotally connected with the first named jaw, and a pawl pivotally mounted on the handle extension and adapted to interlock with the second named jaw, substantially as described.

In testimony whereof I affix my signature J 5 in presence of two witnesses.

VVILLI'AM LOUIS BESSOLO. \Vitnesses F. E. BOWEN, -A. EBERT OBRIEN. 

